Scholarlink

<p>The transition to battery-electric heavy-duty vehicles (BEVs) presents both environmental benefits and new challenges for pavement infrastructure. BEVs carry additional battery mass, increasing axle loads and potentially accelerating pavement deterioration, which could offset sustainability gains. This study assesses the impact of BEV and conventional internal combustion engine vehicles (ICEVs) on flexible pavement fatigue performance, focusing on Asphalt Concrete (AC) layers where maintenance interventions usually focus on. Using pavement response simulations, a sensitivity analysis was performed on typical cross-sections, with variable AC thickness and modulus under theoretical, yet representative, values for the axle loads. Critical tensile strains at the bottom of AC were calculated, and fatigue damage was predicted following the fatigue law of the Mechanistic-Empirical Pavement Design Guide (MEPDG). Results indicate that a modest increase of 0.5 tons per BEV axle raises critical strains by 4–6%, leading to disproportionately higher fatigue damage due to the power-law amplification of pavement fatigue. Statistical testing confirms both the statistical and practical significance of these differences. The findings highlight the need to account for pavement-related effects of heavy-duty vehicle electrification, including potential maintenance implications, to ensure long-term infrastructure resilience. Integrating these considerations is crucial for both sustainable freight transportation and sufficient pavement performance under these evolving traffic patterns.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Comparative Assessment of Pavement Fatigue Damage from Axle Loads of Battery-Electric and Conventional Heavy-Duty Vehicles

  • 期刊论文

  • 发表日期：

    2025年12月1日

查看全文
  • Konstantinos Gkyrtis,
  • Christos Kokkinidis,
  • Alexandros Kokkalis

摘要

The transition to battery-electric heavy-duty vehicles (BEVs) presents both environmental benefits and new challenges for pavement infrastructure. BEVs carry additional battery mass, increasing axle loads and potentially accelerating pavement deterioration, which could offset sustainability gains. This study assesses the impact of BEV and conventional internal combustion engine vehicles (ICEVs) on flexible pavement fatigue performance, focusing on Asphalt Concrete (AC) layers where maintenance interventions usually focus on. Using pavement response simulations, a sensitivity analysis was performed on typical cross-sections, with variable AC thickness and modulus under theoretical, yet representative, values for the axle loads. Critical tensile strains at the bottom of AC were calculated, and fatigue damage was predicted following the fatigue law of the Mechanistic-Empirical Pavement Design Guide (MEPDG). Results indicate that a modest increase of 0.5 tons per BEV axle raises critical strains by 4–6%, leading to disproportionately higher fatigue damage due to the power-law amplification of pavement fatigue. Statistical testing confirms both the statistical and practical significance of these differences. The findings highlight the need to account for pavement-related effects of heavy-duty vehicle electrification, including potential maintenance implications, to ensure long-term infrastructure resilience. Integrating these considerations is crucial for both sustainable freight transportation and sufficient pavement performance under these evolving traffic patterns.